Note 4 - Credit Quality - Aging of Past Due Loans by Loan Class (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Non-covered	$ 2,353,277	$ 2,416,089
Amortized Cost of > 90 Days Accruing No Allowance, Non-covered		0
Amortized Cost of > 90 Days Accruing No Allowance, Total	0
Financial Asset, 30 to 59 Days Past Due [Member]
Non-covered	10,429	15,091
Financial Asset, 60 to 89 Days Past Due [Member]
Non-covered	4,439	5,964
Financial Asset, Equal to or Greater than 90 Days Past Due [Member]
Non-covered	8,433	10,111
Financial Asset, Past Due [Member]
Non-covered	23,301	31,166
Financial Asset, Not Past Due [Member]
Non-covered	2,329,976	2,384,923
Commercial Portfolio Segment [Member]
Non-covered	1,554,313	1,581,492
Commercial Portfolio Segment [Member] \| Construction, Development and Other Land [Member]
Non-covered	64,441	72,319
Amortized Cost of > 90 Days Accruing No Allowance, Non-covered	0	0
Commercial Portfolio Segment [Member] \| Construction, Development and Other Land [Member] \| Financial Asset, 30 to 59 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	22	40
Commercial Portfolio Segment [Member] \| Construction, Development and Other Land [Member] \| Financial Asset, 60 to 89 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	0	2,424
Commercial Portfolio Segment [Member] \| Construction, Development and Other Land [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	122	143
Commercial Portfolio Segment [Member] \| Construction, Development and Other Land [Member] \| Financial Asset, Past Due [Member] \| Non-covered Loans [Member]
Non-covered	144	2,607
Commercial Portfolio Segment [Member] \| Construction, Development and Other Land [Member] \| Financial Asset, Not Past Due [Member] \| Non-covered Loans [Member]
Non-covered	64,297	69,712
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member]
Non-covered	249,674	232,854
Amortized Cost of > 90 Days Accruing No Allowance, Non-covered	0	0
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Financial Asset, 30 to 59 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	848	1,100
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Financial Asset, 60 to 89 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	847	295
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	1,288	2,285
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Financial Asset, Past Due [Member] \| Non-covered Loans [Member]
Non-covered	2,983	3,680
Commercial Portfolio Segment [Member] \| Commercial and Industrial [Member] \| Financial Asset, Not Past Due [Member] \| Non-covered Loans [Member]
Non-covered	246,691	229,174
Commercial Portfolio Segment [Member] \| Multi-family Residential [Member]
Non-covered	189,267	199,521
Amortized Cost of > 90 Days Accruing No Allowance, Non-covered	0	0
Commercial Portfolio Segment [Member] \| Multi-family Residential [Member] \| Financial Asset, 30 to 59 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	291	0
Commercial Portfolio Segment [Member] \| Multi-family Residential [Member] \| Financial Asset, 60 to 89 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	0	0
Commercial Portfolio Segment [Member] \| Multi-family Residential [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	0	0
Commercial Portfolio Segment [Member] \| Multi-family Residential [Member] \| Financial Asset, Past Due [Member] \| Non-covered Loans [Member]
Non-covered	291	0
Commercial Portfolio Segment [Member] \| Multi-family Residential [Member] \| Financial Asset, Not Past Due [Member] \| Non-covered Loans [Member]
Non-covered	188,976	199,521
Commercial Portfolio Segment [Member] \| Single Family Non-owner Occupied [Member]
Non-covered	185,042	195,588
Amortized Cost of > 90 Days Accruing No Allowance, Non-covered	0	0
Commercial Portfolio Segment [Member] \| Single Family Non-owner Occupied [Member] \| Financial Asset, 30 to 59 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	635	1,228
Commercial Portfolio Segment [Member] \| Single Family Non-owner Occupied [Member] \| Financial Asset, 60 to 89 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	105	434
Commercial Portfolio Segment [Member] \| Single Family Non-owner Occupied [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	790	500
Commercial Portfolio Segment [Member] \| Single Family Non-owner Occupied [Member] \| Financial Asset, Past Due [Member] \| Non-covered Loans [Member]
Non-covered	1,530	2,162
Commercial Portfolio Segment [Member] \| Single Family Non-owner Occupied [Member] \| Financial Asset, Not Past Due [Member] \| Non-covered Loans [Member]
Non-covered	183,512	193,426
Commercial Portfolio Segment [Member] \| Non-farm, Non-residential [Member]
Non-covered	840,642	852,223
Amortized Cost of > 90 Days Accruing No Allowance, Non-covered	0	0
Commercial Portfolio Segment [Member] \| Non-farm, Non-residential [Member] \| Financial Asset, 30 to 59 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	1,075	3,182
Commercial Portfolio Segment [Member] \| Non-farm, Non-residential [Member] \| Financial Asset, 60 to 89 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	446	123
Commercial Portfolio Segment [Member] \| Non-farm, Non-residential [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	1,626	1,457
Commercial Portfolio Segment [Member] \| Non-farm, Non-residential [Member] \| Financial Asset, Past Due [Member] \| Non-covered Loans [Member]
Non-covered	3,147	4,762
Commercial Portfolio Segment [Member] \| Non-farm, Non-residential [Member] \| Financial Asset, Not Past Due [Member] \| Non-covered Loans [Member]
Non-covered	837,495	847,461
Commercial Portfolio Segment [Member] \| Agricultural [Member]
Non-covered	14,077	16,676
Amortized Cost of > 90 Days Accruing No Allowance, Non-covered	0	0
Commercial Portfolio Segment [Member] \| Agricultural [Member] \| Financial Asset, 30 to 59 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	0	159
Commercial Portfolio Segment [Member] \| Agricultural [Member] \| Financial Asset, 60 to 89 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	6	67
Commercial Portfolio Segment [Member] \| Agricultural [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	1,156	492
Commercial Portfolio Segment [Member] \| Agricultural [Member] \| Financial Asset, Past Due [Member] \| Non-covered Loans [Member]
Non-covered	1,162	718
Commercial Portfolio Segment [Member] \| Agricultural [Member] \| Financial Asset, Not Past Due [Member] \| Non-covered Loans [Member]
Non-covered	12,915	15,958
Commercial Portfolio Segment [Member] \| Farmland [Member]
Non-covered	11,170	12,311
Amortized Cost of > 90 Days Accruing No Allowance, Non-covered	0	0
Commercial Portfolio Segment [Member] \| Farmland [Member] \| Financial Asset, 30 to 59 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	171	11
Commercial Portfolio Segment [Member] \| Farmland [Member] \| Financial Asset, 60 to 89 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	1	2
Commercial Portfolio Segment [Member] \| Farmland [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	109	142
Commercial Portfolio Segment [Member] \| Farmland [Member] \| Financial Asset, Past Due [Member] \| Non-covered Loans [Member]
Non-covered	281	155
Commercial Portfolio Segment [Member] \| Farmland [Member] \| Financial Asset, Not Past Due [Member] \| Non-covered Loans [Member]
Non-covered	10,889	12,156
Consumer Real Estate Portfolio Segment [Member]
Non-covered	724,302	745,024
Consumer Real Estate Portfolio Segment [Member] \| Home Equity Lines [Member]
Non-covered	84,629	90,227
Amortized Cost of > 90 Days Accruing No Allowance, Non-covered	0	0
Consumer Real Estate Portfolio Segment [Member] \| Home Equity Lines [Member] \| Financial Asset, 30 to 59 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	422	599
Consumer Real Estate Portfolio Segment [Member] \| Home Equity Lines [Member] \| Financial Asset, 60 to 89 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	122	230
Consumer Real Estate Portfolio Segment [Member] \| Home Equity Lines [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	344	558
Consumer Real Estate Portfolio Segment [Member] \| Home Equity Lines [Member] \| Financial Asset, Past Due [Member] \| Non-covered Loans [Member]
Non-covered	888	1,387
Consumer Real Estate Portfolio Segment [Member] \| Home Equity Lines [Member] \| Financial Asset, Not Past Due [Member] \| Non-covered Loans [Member]
Non-covered	83,741	88,840
Consumer Real Estate Portfolio Segment [Member] \| Single Family Owner Occupied [Member]
Non-covered	634,898	650,306
Amortized Cost of > 90 Days Accruing No Allowance, Non-covered	0	0
Consumer Real Estate Portfolio Segment [Member] \| Single Family Owner Occupied [Member] \| Financial Asset, 30 to 59 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	4,666	5,812
Consumer Real Estate Portfolio Segment [Member] \| Single Family Owner Occupied [Member] \| Financial Asset, 60 to 89 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	2,093	1,457
Consumer Real Estate Portfolio Segment [Member] \| Single Family Owner Occupied [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	2,528	3,974
Consumer Real Estate Portfolio Segment [Member] \| Single Family Owner Occupied [Member] \| Financial Asset, Past Due [Member] \| Non-covered Loans [Member]
Non-covered	9,287	11,243
Consumer Real Estate Portfolio Segment [Member] \| Single Family Owner Occupied [Member] \| Financial Asset, Not Past Due [Member] \| Non-covered Loans [Member]
Non-covered	625,611	639,063
Consumer Real Estate Portfolio Segment [Member] \| Owner Occupied Construction [Member]
Non-covered	4,775	4,491
Amortized Cost of > 90 Days Accruing No Allowance, Non-covered	0	0
Consumer Real Estate Portfolio Segment [Member] \| Owner Occupied Construction [Member] \| Financial Asset, 30 to 59 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	0	0
Consumer Real Estate Portfolio Segment [Member] \| Owner Occupied Construction [Member] \| Financial Asset, 60 to 89 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	0	0
Consumer Real Estate Portfolio Segment [Member] \| Owner Occupied Construction [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	0	0
Consumer Real Estate Portfolio Segment [Member] \| Owner Occupied Construction [Member] \| Financial Asset, Past Due [Member] \| Non-covered Loans [Member]
Non-covered	0	0
Consumer Real Estate Portfolio Segment [Member] \| Owner Occupied Construction [Member] \| Financial Asset, Not Past Due [Member] \| Non-covered Loans [Member]
Non-covered	4,775	4,491
Consumer and Other Portfolio Segment [Member]
Non-covered	74,662	89,573
Consumer and Other Portfolio Segment [Member] \| Consumer Loans [Member]
Non-covered	72,325	87,758
Amortized Cost of > 90 Days Accruing No Allowance, Non-covered	0	0
Consumer and Other Portfolio Segment [Member] \| Consumer Loans [Member] \| Financial Asset, 30 to 59 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	2,299	2,960
Consumer and Other Portfolio Segment [Member] \| Consumer Loans [Member] \| Financial Asset, 60 to 89 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	819	932
Consumer and Other Portfolio Segment [Member] \| Consumer Loans [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	470	560
Consumer and Other Portfolio Segment [Member] \| Consumer Loans [Member] \| Financial Asset, Past Due [Member] \| Non-covered Loans [Member]
Non-covered	3,588	4,452
Consumer and Other Portfolio Segment [Member] \| Consumer Loans [Member] \| Financial Asset, Not Past Due [Member] \| Non-covered Loans [Member]
Non-covered	68,737	83,306
Consumer and Other Portfolio Segment [Member] \| Other Loan [Member]
Non-covered	2,337	1,815
Amortized Cost of > 90 Days Accruing No Allowance, Non-covered	0	0
Consumer and Other Portfolio Segment [Member] \| Other Loan [Member] \| Financial Asset, 30 to 59 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	0	0
Consumer and Other Portfolio Segment [Member] \| Other Loan [Member] \| Financial Asset, 60 to 89 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	0	0
Consumer and Other Portfolio Segment [Member] \| Other Loan [Member] \| Financial Asset, Equal to or Greater than 90 Days Past Due [Member] \| Non-covered Loans [Member]
Non-covered	0	0
Consumer and Other Portfolio Segment [Member] \| Other Loan [Member] \| Financial Asset, Past Due [Member] \| Non-covered Loans [Member]
Non-covered	0	0
Consumer and Other Portfolio Segment [Member] \| Other Loan [Member] \| Financial Asset, Not Past Due [Member] \| Non-covered Loans [Member]
Non-covered	$ 2,337	$ 1,815

FIRST COMMUNITY BANKSHARES INC /VA/ 10-Q